Spring-motor-rewinding mechanism.



H. CRESCA.

SPRING MOTORREWINDING MECHANISM.

APPucATloN man uma. 1915.

1,182,252, Patented May 9,1916.

2 SHEETS-SHEET l.

I .H.cREscA. SPRING MOTOR REWINDING MECHANISM.

APPLICATION FILED DEC. 3. |915.

Patented May 9,1916.

2 SHEETS-SHEET 2.

UNITED sTATEs PATENT onnron.

n HENRYcRnsoA, or MILWAUKEE, WISCONSIN.

i SPRING-MTOR-REWINDINGlVIECI-IANISM.

To all whom it may concern: e

. Be it. known thatLIIENnY Grinsen,l a citizenof the United States, and resident of Milwaukee, in the county ofMilwaukee and State of `vWisconsin, have invented `certain new` and useful Improvements in Spring-` Motorewinding Mechanism; f.and I do hereby declarethatthe followingis a full, Y clear, and exact description thereof,

y The present invention is directed to new and useful improvements in spring motor structures and has for its primary object' the provision 0f means whereby a partial vrev winding of a motor may be procured as part ofthe work initially done by fthe :motor vwhereby the length of time which elapses in the expenditure of the entire energy of Vthe motor may be materially lengthened.

It is morespeciiically an object to provide such a rewindingmeans in connection with la motor which is comparatively simple in nature, and whereby the rewinding operoperation `of the motor. Y.

With the above, and yother vantages in View, the invention resides more particularly vin the novel combination, ar-

ation is continuous and constant during the rangementand formation of parts more 'par--H l ticularly hereinafter described and particumotor to the work shaft, the governor and mechanism.

larly pointed out in the appended claims.

In ythe drawings Figure 1 is a side elevational view of a spring motor structure having the improved rewinding mechanism associated therewith, with parts thereof broken away; Fig. 2 is a sectional view taken vertically on the line 2-2 of Fig. 1 Y and showing the gear transmission Vfrom the the rewinding mechanism, and Fig. 3 is an end view of the structure shown in Fig. 1, showing more particularlyv the rewinding Referring now more particularly to the accompanying drawings, there is provided aV base or bed plate 5 supported by the legs 6 Vand having a vertical bearing wall 7 at one end.` Upstanding.. from the intermediate A' .portion'of the bed-plate is a standard 8 in which is journaled the hub shaft 9 of` a springmotor which Yincludes the spring 10 connected with the hub and with a rotatable housing 1l closed at one end and carrying on said endl a central boss 12 to which is lsecured as by the bolts12a a gear wheel 13, this gear wheel having a shaft section 14;` projecting axially therefrom and jour- Specification of Letters Pat-ent. Y

ects and ard-l Patenten May e, isle.

Applicationled December 3, 1915. Serial No. 64,806.

naledin the wall 7 whereby a bearingis had Y for the motorstructure. Journaled also inV the wall 7 is the workshaft 15 which in the present instancecarries a fan 16 and which is connected with the gear-wheel 13 by an increasing train ofV gears 17.

`Although a specific form of motor structure has been described, it will be under'- stoodthaty any suitable motor structure may Vbe empl'oyedin `'connection with the present invention, and that the shaft 15 may be used in Vother connections and perform other Work than driving the fan 16.

For regulating the speed of operation of the motor a governor shaft 18 is provided which has apinion 19 meshing with one of the gears of thetrain 17 and this shaft carriesv a `governor mechanism including a weight controlled' disk member 2O which is engageable by a brake lever 21 which is in- .bed opposite the wall 7, the free end of this shaft being squared for engagement of akey member. Retrograde movement of the hub shaft 9 isprevented by a ratchet wheel 29 carried thereon and engageable by a pawl 30 on the standard 8.

|Taking up now the rewinding mechanism,

V there `is provided atthe end of the bed opposite the wall 7 a frame 31 in the form of a wheel and disposed around the periphery of this frame are a series of sprocket pin# ions 32 which carry a sprocket chain 33.1

A shaft 34C is journaled in the wall 7 and in the frame 31 and this shaft carries on one endv a pinion 35 meshing with one of the train of gears 17 and carries on its othery end a sprocket Wheel 36 around which is trained a chain 37 ,also associated vwith a sprocket pinionv 38 carried by a shaft 39 journaled `in the peripheral portion of the frame, thisrshaft having fixed thereon one of the sprocket pinions 32 whereby the termediately pivoted to a standard 22 on the chain 33 is rotated upon rotation ofthe motor. J ournaled ink the hub portion of the frame is a shaft 4() yand this shaft projects outwardly of the frame. and carries an arm il which extends radially with respect to the frame and is secured at its outer end to a portion of the chain 33. A series of increasing gears 42 connect the 'shaft/40 and the rewind shaft 26 of the motor. Thus, as the motor is operated part y vofits energy is expended in rotating the shaft 34, which through the-sprocket chain:

33 and radial arm il rotatestthe shaft 40 and consequently the rewind shaft 26 so that a portion of the energy expendedis utilized to procure' a partial rewinding of the motor, whereby the length of. time necessary for a complete dissipation of the power of the motor is considerably lengthened.'

As the size of the framerl isconsiderable, itis seen that a relatively great leverage is Y provided through the medium of the radial arm 4l whereby a considerablyi slight force may operate to procure a rewinding action of the'motor without the use -of an eXces` sively large train of increasing gears between the rewind shaft andthe shaft whichl initially imparts the power for -rewinding What is claimed is l 1. The combination withV a spring motor including a work member and a rewinding shaft of means operable by the 4work member for operating the rewinding shaft inv cluding a third shaft, a radial Yarm carried by the third shaft, means operable by the work member for rotating said arm, and

* an operative connection between' the third shaft and the rewindl shaft.

2. The combination with a spring motor including a work member and a yrewindl shaft of a circular series of sprocket wheels,

a shaft concentric with said series, a chain on said wheels, a radical arm o'n the shaft connected with the c hain,an operative con# nection betweenl the workmember of Vthe motor and the chain, and an operative connection between the shaft and the rewind portion of the motor.

3. A spring motor structure of the class described comprising a basega motor on the base and including a work portion and a rewind shaft, a circular frame'on the, base, a series of l sprockets disposed; about the peripheryfof thev frame, a chain on said sprockets, a second shaft journaled centrally ofthe frame, a radial arm onf the Y shaft connected with vthe chain, a third shaft, an operative connectionbetween saidv Y third shaft and the work portion of the mo-r tor, an operative connection betweenV said third shaft Vand the (chain, andanoperative connection between the firstY shaft and theoperative connection ,betweenr'V-.the second 1 shaft and the rewind yshaft",A y

' In testimony that I claim the foregoing I have hereunto set my hand, at Milwaukee, in they county-'of Milwaukee and Statey of Vis'consin, in the presence-'ofV witness( y HENRY GRESCA.y

' Witness: l o

M. E. DowNnY.

copies of this patent may be obtained for ve cents each, byv addressing the Commisrsioner-f ot retenus,

e Washingtomnc'. v 

